
var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');

var indexRouter = require('./routes/index');

var app = express();
/*增加跨域的处理*/
app.all("*", function (req, res, next) {
  //设置允许跨域的域名，*代表允许任意域名跨域
  res.header("Access-Control-Allow-Origin", "*");
  //允许的header类型
  res.header("Access-Control-Allow-Headers", "content-type");
  //跨域允许的请求方式
  res.header("Access-Control-Allow-Methods", "DELETE,PUT,POST,GET,OPTIONS");
  if (req.method.toLowerCase() == 'options') {
    res.send(200);  //让options尝试请求快速结束
  } else {
    next();
  }
})
/*增加跨域的处理*/


// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

app.use('/', indexRouter);
app.use('/users', require('./routes/users'));


/*新增测试用的Router,测试几种不同的请求格式能否通过*/
app.use('/test', require('./routes/test'))
/*新增测试用的Router,测试几种不同的请求格式能否通过*/

/*新增工作项目用的Router,返回Mockj生成的JSON*/
// app.use('/mock', require('./routes/mock'))
/*新增工作项目用的Router,返回Mockj生成的JSON*/

let ws = require("./routes/ws.js");

// catch 404 and forward to error handler
app.use(function (req, res, next) {
  
  next(createError(404));
});

// error handler
app.use(function (err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

module.exports = app;
